Osteochondral Lesion of the Talus (OLT): Grading, Symptoms, Causes, Treatment. What is Osteochondral Lesion of the Talus? Osteochondral lesion of the talus, also known as OLT, is a disorder, which consists of a section of damaged cartilage. There is also a bone on top of the talus.
For other uses, see Ethnic groups in Europe. The Caucasian race (also Caucasoid or occasionally Europid) is a taxon historically used to describe the physical or biological type of some or all of the populations of Europe, North Africa, the Horn of Africa, Western Asia, Central Asia, and South Asia.he United States National Library of Medicine often used the term Caucasian as a race in the past. However, it later discontinued such usage in favor of the more narrow geographical term European, which traditionally only applied to a subset of Caucasoids.
White, black, asian, etc. are considered races of people. Ethnicity is a more specific term having to do with the person's cultural/tribal group, such as French, German, Chinese, etc. There can also be ethnic subgroups. For example, Bavarians could be considered an ethnic group within the German ethnicity.